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Indent Level
Color Curly Brackets (indicating CPC extensions to IPC) References Date Revised

CPC
COOPERATIVE PATENT CLASSIFICATION
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METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY,
{
e.g.
}
FOR PERFORMING MECHANICAL WORK IN GENERAL (for particular applications, see the relevant subclasses, e.g. B07B 1/40, B23Q 17/12, B24B 31/06; measurement of mechanical vibrations G01H; in direction finding, locating, distance or velocity measuring G01S;
{
generating seismic energy G01V 1/02
}
; control of mechanical vibrations in general G05D; sound-producing devices, e.g. bells, sirens, whistles G10K,
{
e.g. methods or devices for transmitting, conducting, or directing sound in general G10K 11/00
}
; generation of electrical oscillations H03B; electromechanical resonators in general H03H; electromechanical transducers
{
for communication techniques, e.g. microphones, speakers
}
H04R)
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Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
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B06B 1/02
.
making use of electrical energy (B06B 1/18, B06B 1/20 take precedence)
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B06B 1/0207
. .
{
Driving circuits (specially adapted for particular applications, see the relevant subclass, e.g. G01; circuits for steering transducer arrays G10K 11/34; basic circuits H03)
}
B06B 1/0215
. . .
{
for generating pulses, e.g. bursts of oscillations, envelopes
}
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B06B 1/0223
. . .
{
for generating signals continuous in time
}
B06B 1/023
. . . .
{
and stepped in amplitude, e.g. square wave, 2-level signal
}
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B06B 1/0238
. . . .
{
of a single frequency, e.g. a sine-wave
}
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B06B 1/0246
. . . . .
{
with a feedback signal
}
B06B 1/0253
. . . . . .
{
taken directly from the generator circuit
}
B06B 1/0261
. . . . . .
{
taken from a transducer or electrode connected to the driving transducer
}
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B06B 1/0269
. . . .
{
for generating multiple frequencies
}
B06B 1/0276
. . . . .
{
with simultaneous generation, e.g. with modulation, harmonics
}
B06B 1/0284
. . . . .
{
with consecutive, i.e. sequential generation, e.g. with frequency sweep
}
B06B 1/0292
. .
{
Electrostatic transducers, e.g. electret-type
}
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. .
operating with electromagnetism (dynamo-electric motors with vibrating magnet, armature or coil system H02K 33/00)
B06B 1/045
. . .
{
using vibrating magnet, armature or coil sytem
}
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B06B 1/06
. .
operating with piezo-electric effect or with electrostriction (piezo-electric or electrostrictive devices per se H01L 41/00)
B06B 1/0603
. . .
{
using a piezo-electric bender, e.g. bimorph
}
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B06B 1/0607
. . .
{
using multiple elements (B06B 1/064 and B06B 1/0688 take precedence)
}
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B06B 1/0611
. . . .
{
in a pile
}
B06B 1/0614
. . . . .
{
for generating several frequencies
}
B06B 1/0618
. . . . .
{
of piezo- and non-piezo-electric elements, e.g. `Tonpilz`
}
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. . . .
{
on one surface
}
B06B 1/0625
. . . . .
{
Annular array
}
B06B 1/0629
. . . . .
{
Square array
}
B06B 1/0633
. . . . .
{
Cylindrical array
}
B06B 1/0637
. . . . .
{
Spherical array
}
B06B 1/064
. . . . .
{
with multiple active layers
}
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B06B 1/0644
. . .
{
using a single piezo-electric element (B06B 1/0688 takes precedence)
}
B06B 1/0648
. . . .
{
of rectangular shape
}
. . . .
{
of circular shape
}
B06B 1/0655
. . . .
{
of cylindrical shape
}
B06B 1/0659
. . . .
{
of U-shape
}
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B06B 1/0662
. . . .
{
with an electrode on the sensitive surface
}
B06B 1/0666
. . . . .
{
used as a diaphragm
}
B06B 1/067
. . . . .
{
which is used as, or combined with, an impedance matching layer
}
B06B 1/0674
. . . . .
{
and a low impedance backing, e.g. air
}
B06B 1/0677
. . . . .
{
and a high impedance backing
}
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B06B 1/0681
. . . . .
{
and a damping structure
}
B06B 1/0685
. . . . . .
{
on the back only of piezo-electric elements
}
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B06B 1/0688
. . .
{
with foil-type piezo-electric elements, e.g. PVDF
}
B06B 1/0692
. . . .
{
with a continuous electrode on one side and a plurality of electrodes on the other side
}
B06B 1/0696
. . . .
{
with a plurality of electrodes on both sides
}
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B06B 1/08
. .
operating with magnetostriction (magnetostrictive devices per se H01L 41/00)
B06B 1/085
. . .
{
using multiple elements, e.g. arrays
}
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B06B 1/10
.
making use of mechanical energy (B06B 1/18, B06B 1/20 take precedence)
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. .
operating with systems involving reciprocating masses
B06B 1/14
. . .
the masses being elastically coupled
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. .
operating with systems involving rotary unbalanced masses
{
(electrical motors using rotary unbalanced masses in general H02K 7/061)
}
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B06B 1/161
. . .
{
Adjustable systems, i.e. where amplitude or direction of frequency of vibration can be varied
}
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B06B 1/162
. . . .
{
Making use of masses with adjustable amount of eccentricity
}
B06B 1/163
. . . . .
{
the amount of eccentricity being only adjustable when the system is stationary (B06B 1/165 takes precedence)
}
B06B 1/164
. . . . .
{
the amount of eccentricity being automatically variable as a function of the running condition, e.g. speed, direction (B06B 1/165 takes precedence)
}
B06B 1/165
. . . . .
{
with fluid masses or the like
}
B06B 1/166
. . . .
{
Where the phase-angle of masses mounted on counter-rotating shafts can be varied, e.g. variation of the vibration phase
}
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B06B 1/167
. . .
{
Orbital vibrators having masses being driven by planetary gearings, rotating cranks or the like
}
B06B 1/168
. . . .
{
Rotary pendulum vibrators
}
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.
wherein the vibrator is actuated by pressure fluid (B06B 1/20 takes precedence)
B06B 1/183
. .
{
operating with reciprocating masses
}
B06B 1/186
. .
{
operating with rotary unbalanced masses
}
B06B 1/20
.
making use of a vibrating fluid
{
(whistles or sirens per se G10K)
}
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Methods or apparatus specially adapted for transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
B06B 3/02
.
involving a change of amplitude
B06B 3/04
.
involving focusing or reflecting
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B06B 2201/00
Indexing scheme associated with B06B 1/0207 for details covered by B06B 1/0207 but not provided for in any of its subgroups
B06B 2201/20
.
Application to multi-element transducer
B06B 2201/30
.
with electronic damping
B06B 2201/40
.
with testing, calibrating, safety devices, built-in protection, construction details
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B06B 2201/50
.
Application to a particular transducer type
B06B 2201/51
. .
Electrostatic transducer
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B06B 2201/52
. .
Electrodynamic transducer
B06B 2201/53
. . .
with vibrating magnet or coil
B06B 2201/54
. . .
Electromagnetic acoustic transducers [EMAT]
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B06B 2201/55
. .
Piezoelectric transducer
B06B 2201/56
. . .
Foil type, e.g. PVDF
B06B 2201/57
. .
Electrostrictive transducer
B06B 2201/58
. .
Magnetostrictive transducer
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B06B 2201/70
.
Specific application
B06B 2201/71
. .
Cleaning in a tank
B06B 2201/72
. .
Welding, joining, soldering
B06B 2201/73
. .
Drilling
B06B 2201/74
. .
Underwater
B06B 2201/75
. .
Repelling animals, insects, humans
B06B 2201/76
. .
Medical, dental
B06B 2201/77
. .
Atomizers
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Last Modified: 10/10/2013